Question $8$ of $9$

An application requires different date formats to be converted into one common date format.

implement the function transform$\_$date$\_$format which accepts a list of dates as strings, and returns a new list of strings that represents dates in the format of WYYDDMM$,$ where YYYY$,$ MM$,$ and DD are numbers representing year, month, and day, respectively. All incoming dates will be valid dates, but only those in one of the following formats: Y YYP DDP MM$,$ YYYY$/$MM$/$DD$,$ or MM$-$DD$-$YYYY$,$ should be included in the returned list.

For example, transform$\_$date$\_$format$(["2010/02/20","2016$ p $19p12","71-18-2012","20181224","20130720"])$ should return the list $["20102002","20161912","20121811"].$